REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 29, 2023	Jul. 30, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,067,886	$ 867,981	$ 3,257,062	$ 2,661,651
Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	877,258	693,848	2,715,544	2,141,169
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	190,628	174,133	541,518	520,482
Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	846,560	664,578	2,616,558	2,025,704
Networking Platforms | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	846,560	664,578	2,616,558	2,025,704
Networking Platforms | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	78,880	63,483	221,768	205,557
Platform Software and Services | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	15,980	15,230	48,290	66,655
Platform Software and Services | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	62,900	48,253	173,478	138,902
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	13,167	17,342	49,139	55,334
Blue Planet Automation Software and Services | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	2,832	4,632	14,143	17,442
Blue Planet Automation Software and Services | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	10,335	12,710	34,996	37,892
Global Services
Disaggregation of Revenue [Line Items]
Total revenue	129,279	122,578	369,597	375,056
Global Services | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	11,886	9,408	36,553	31,368
Global Services | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	117,393	113,170	333,044	343,688
Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	718,997	563,837	2,239,180	1,730,066
Converged Packet Optical | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	718,997	563,837	2,239,180	1,730,066
Converged Packet Optical | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Converged Packet Optical | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Converged Packet Optical | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	127,563	100,741	377,378	295,638
Routing and Switching | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	127,563	100,741	377,378	295,638
Routing and Switching | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Routing and Switching | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Routing and Switching | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	78,880	63,483	221,768	205,557
Platform Software and Services | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	78,880	63,483	221,768	205,557
Platform Software and Services | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	13,167	17,342	49,139	55,334
Blue Planet Automation Software and Services | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	13,167	17,342	49,139	55,334
Blue Planet Automation Software and Services | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	72,887	72,760	213,938	219,270
Maintenance Support and Training | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	72,887	72,760	213,938	219,270
Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	46,840	38,704	120,901	120,504
Installation and Deployment | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Installation and Deployment | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Installation and Deployment | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Installation and Deployment | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	46,840	38,704	120,901	120,504
Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	9,552	11,114	34,758	35,282
Consulting and Network Design | Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Consulting and Network Design | Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Consulting and Network Design | Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Consulting and Network Design | Global Services
Disaggregation of Revenue [Line Items]
Total revenue	$ 9,552	$ 11,114	$ 34,758	$ 35,282